Sideboard



FIG. 1 is a front-side perspective view of a sideboard showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is an enlarged partial perspective view thereof; and,

FIG. 5 is a top view thereof.

The bottom and rear elevation views of the design are not shown and would not depict any aspects of the invention not already shown in the Figures. 

The ornamental design for a sideboard, as shown and described. 